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 ###Instrução: Qual é a Lok Sabha para o Dravida Munnetra Kazhagam, em 1999-04?
 ###Tabelas: CREATE TABLE u.s._standard_ratings (u.s._standard_ratings_id AUTO_INCREMENT PRIMARY KEY, # INT, Air Date VARCHAR, Timeslot VARCHAR, Rating VARCHAR, Share INT, 18-49 VARCHAR, Viewers VARCHAR, Weekly Rank VARCHAR) CREATE TABLE notes_and_references (notes_and_references_id AUTO_INCREMENT PRIMARY KEY, School VARCHAR, Location VARCHAR, Total INT, Crimean War INT, Persian War INT, Indian Mutiny INT, 1860-1878 INT, Zulu War INT, Second Afghan War VARCHAR) CREATE TABLE by_net_enrollment_ratio_in_education (by_net_enrollment_ratio_in_education_id AUTO_INCREMENT PRIMARY KEY, Region VARCHAR, Preschool (0–5 years) VARCHAR, Primary (6–13 years) VARCHAR, Secondary (14–17 years) VARCHAR, Tertiary (18–24 years) VARCHAR) CREATE TABLE construction (construction_id AUTO_INCREMENT PRIMARY KEY, Ship VARCHAR, Site VARCHAR, Guns INT, Naval constructor VARCHAR, Superintendent VARCHAR) CREATE TABLE members_of_the_parliament (members_of_the_parliament_id AUTO_INCREMENT PRIMARY KEY, Lok Sabha VARCHAR, Duration VARCHAR, Name of M.P. VARCHAR, Party Affiliation VARCHAR, Election Year INT)  
SELECT Lok Sabha FROM members_of_the_parliament WHERE Party Affiliation = dravida munnetra kazhagam AND Duration = 1999-04